$(function(){
    var show_num = [];
    draw(show_num);
    $("#canvas").on('click',function(){
        draw(show_num);
    })
    $(".btn").on('click',function(e){
        e.preventDefault();
        var val = $(".input-val").val().toLowerCase();
        var num = show_num.join("");
        console.log(num);
        if(val==''){
            alert('请输入验证码！');
        }else if(val == num){
            alert('注册成功！');
            $(".input-val").val('');
            // draw(show_num);
            console.log(window.location);
            window.location.href='login.html'
        }else{
            alert('验证码错误！请重新输入！');
            $(".input-val").val('');
            // draw(show_num);
        }
    })
})
//生成并渲染出验证码图形
function draw(show_num) {
    var canvas_width=$('#canvas').width();
    var canvas_height=$('#canvas').height();
    var canvas = document.getElementById("canvas");//获取到canvas的对象，演员
    var context = canvas.getContext("2d");//获取到canvas画图的环境，演员表演的舞台
    canvas.width = canvas_width;
    canvas.height = canvas_height;
    var sCode = "a,b,c,d,e,f,g,h,i,j,k,m,n,p,q,r,s,t,u,v,w,x,y,z,A,B,C,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,W,X,Y,Z,1,2,3,4,5,6,7,8,9,0";
    var aCode = sCode.split(",");
    var aLength = aCode.length;//获取到数组的长度
    for (var i = 0; i < 4; i++) { //这里的for循环可以控制验证码位数（如果想显示6位数，4改成6即可）
        var j = Math.floor(Math.random() * aLength);//获取到随机的索引值
        // var deg = Math.random() * 30 * Math.PI / 180;//产生0~30之间的随机弧度
        var deg = Math.random() - 0.5; //产生一个随机弧度
        var txt = aCode[j];//得到随机的一个内容
        show_num[i] = txt.toLowerCase();
        var x = 10 + i * 20;//文字在canvas上的x坐标
        var y = 20 + Math.random() * 8;//文字在canvas上的y坐标
        context.font = "bold 23px 微软雅黑";
        context.translate(x, y);
        context.rotate(deg);
        context.fillStyle = randomColor();
        context.fillText(txt, 0, 0);
        context.rotate(-deg);
        context.translate(-x, -y);
    }
    for (var i = 0; i <= 5; i++) { //验证码上显示线条
        context.strokeStyle = randomColor();
        context.beginPath();
        context.moveTo(Math.random() * canvas_width, Math.random() * canvas_height);
        context.lineTo(Math.random() * canvas_width, Math.random() * canvas_height);
        context.stroke();
    }
    for (var i = 0; i <= 30; i++) { //验证码上显示小点
        context.strokeStyle = randomColor();
        context.beginPath();
        var x = Math.random() * canvas_width;
        var y = Math.random() * canvas_height;
        context.moveTo(x, y);
        context.lineTo(x + 1, y + 1);
        context.stroke();
    }
}
//得到随机的颜色值
function randomColor() {
    var r = Math.floor(Math.random() * 256);
    var g = Math.floor(Math.random() * 256);
    var b = Math.floor(Math.random() * 256);
    return "rgb(" + r + "," + g + "," + b + ")";
}

//手机号正则
function confirmSJ()
{
    var tel=document.getElementById("phone");
    var  tel1=document.getElementById("tel1");
    tel.onblur=function() {
        if((tel.value).length!=0){  //密码限制位11位的数字手机号码
            reg=/^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/;
            if(!reg.test(tel.value)){
                tel1.innerHTML="对不起，您输入的手机格式不正确!";
            }else {
                tel1.innerHTML="";
            }
        }
        else{
            tel1.innerHTML="手机号不为空";
        }
    };
}
//用户名正则
var uname = document.getElementById("username");
var span = document.getElementById("username2");
var regexp = /^[a-zA-Z0-9_-]{6,16}$/;
uname.onblur = function () {
    if (regexp.test(this.value)) {
        console.log('正确的');
        span.className = 'right';
        span.innerHTML = '';
    } else {
        console.log('错误的');
        span.className = 'wrong';
        span.innerHTML = '用户名格式输入不正确';
    }
}
window.onload=function()
{
    confirmSJ();
};